I am using Marchand XM-9 and am quite pleased with it so far. It is just a x-over though, you will need another amp for the sub. Check ebay, the Marchands turn up used there FTTT.
Hypex HS200 amp vs Marchand for use as sub amp...
About to get some Thor speakers but will need a sub. My Jadis intergrated has an OUT, so could i use a Marchand XM9 receiving the OUT and the XM9 powering the sub?. I'm building my own sub with a Excel W26, plan to use the sub from 20-100hz. Or do you recommend the Hypex HS200 sub amp. Never used a sub, not sure about the hookup. Any suggestions greatly appreciated.